Mini disc magnet



FIG. 1 is a rear perspective view of a mini disc magnet showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view, the bottom plan view being identical thereto; and,

FIG. 5 is a right side elevational view, the left side being identical thereto. 

What is claimed is the ornamental design for a mini disc magnet, as shown and described. 